HIV-1 Virologic Suppression With TMB-365 and TMB-380 Antibodies Study

NCT ID: NCT07215468

Last Updated: 2026-02-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

75 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-16

Study Completion Date

2027-08-31

Brief Summary

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TMB-365 is a monoclonal antibody that binds to the CD4 receptor. TMB-380, aka VRC07-523LS is a monoclonal antibody that binds to HIV. Both interfere with HIV entry. This study is designed to test the combination of the antibodies as maintenance therapy in HIV infected suppressed individuals discontinuing oral cART for 48 weeks.

Researchers will compare TMB-365/TMB-380 given IV every 8 weeks to continuation of daily oral cART to see if TMB-365/TMB-380 can also maintain viral suppression.

Participants will:

1. Receive TMB-365/TMB-380 infusion or take oral cART as scheduled for 48 weeks
2. Visit the clinic as schedule for checkups and tests

Detailed Description

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Conditions

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HIV -1 Infection

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Combination of TMB-365 and TMB-380 antibodies via IV infusions

Participants will receive an IV infusion of the combination of TMB-365 and TMB-380 each every 8 weeks.

Group Type EXPERIMENTAL

TMB-365

Intervention Type DRUG

A monoclonal antibody acts as a HIV post-attachment inhibitor to be given intravenously

TMB-380

Intervention Type DRUG

A broadly neutralizing antibody (bNAb) against HIV to be given intravenously

Baseline oral cART

Participants will continue suppressive daily oral cART

Group Type ACTIVE_COMPARATOR

Baseline ART

Intervention Type DRUG

Baseline ART to be taken daily and orally

Interventions

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TMB-365

A monoclonal antibody acts as a HIV post-attachment inhibitor to be given intravenously

Intervention Type DRUG

TMB-380

A broadly neutralizing antibody (bNAb) against HIV to be given intravenously

Intervention Type DRUG

Baseline ART

Baseline ART to be taken daily and orally

Intervention Type DRUG

Other Intervention Names

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VRC07-523LS

Eligibility Criteria

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Inclusion Criteria

1. At least 18 years of age on the day of Screening.
2. Asymptomatic HIV-1 infection, documented by any licensed rapid HIV test or HIV enzyme or chemiluminescence immunoassay (E/CIA) test kit at any time prior to study entry and confirmed by Geenius™ or a second antibody test by a method other than the initial rapid HIV and/or E/CIA test, or by HIV-1 antigen, plasma HIV-1 RNA viral load at or prior to screening.
3. On continuous suppressive cART for at least 6 months prior to Screening with one documented HIV-1 RNA level \<50 copies/mL within 6 months of Screening. Continuous cART is defined as no interruptions greater than 3 consecutive days. cART is defined as a DHHS recommended regimen. Study participants should be on a stable oral regimen for at least 3 months prior to Screening.
4. Screening plasma HIV-1 RNA \< 50 copies/mL
5. CD4+ T cell count \>350 cells/mm3
6. Laboratory values obtained within 35 days prior to the first dose:

* Hemoglobin ≥ 10.0 g/dL
* Platelet count ≥ 100,000/mm3
* Absolute neutrophil count ≥ 1,000/mm3
* Serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) \< 1.5 x upper limit of normal (ULN)
* Creatinine clearance (CrCl) of ≥ 50 mL/min
7. Willing to comply with the requirements of the protocol and available for follow-up for the planned duration of the study.
8. In the opinion of the principal investigator or designee, has understood the information provided; written informed consent needs to be given before any study-related procedures are performed.
9. Persons of childbearing potential sexually active with a partner who can impregnate them, must agree to use one effective method of contraception from the time of signing the consent to completion of the study, and agree to pregnancy testing as per the Schedule of Events and Procedures. Persons of childbearing potential are participants born female who are not surgically sterile (no history of bilateral tubal ligation, hysterectomy, or bilateral salpingo-oophorectomy), are not postmenopausal (at least one year without menses), and are not otherwise sterile by medical evaluation.

Exclusion Criteria

1. Receipt of any monoclonal antibody for the treatment or prevention of HIV infection.
2. Receiving cabotegravir and rilpivirine intramuscularly as maintenance therapy for HIV-1 infection.
3. Pregnant, planning a pregnancy during the trial period, or lactating.
4. Known allergy/sensitivity or any hypersensitivity to components of the study drug or its formulation, or known allergy to a MAb.
5. History of severe allergic reactions to medications, vaccinations, or monoclonal antibody therapy for other conditions such as COVID.
6. Major psychiatric illness including any history of schizophrenia or severe psychosis, uncontrolled bipolar disorder requiring acute therapy, or suicide attempt in the previous three years.
7. Serious illness requiring systemic treatment and/or hospitalization within 21 days prior to Baseline.
8. Receipt of immunomodulatory agents (e.g., interleukins, interferons, cyclosporine, high dose systemic corticosteroids), HIV vaccine, systemic cytotoxic chemotherapy, or investigational therapy within 180 days prior to Baseline.
9. Any chronic or acute medical condition, including chronic Hepatitis B infection, chronic Hepatitis C infection with viremia, drug use and alcohol abuse, which in the opinion of the investigator would interfere with evaluation of the study drug.
10. Lack of adequate venous access.
11. Individuals who have experienced virologic failure during treatment with two or more cART treatment regimens and those being treated with regimens containing either ibalizumab, enfuvirtide, maraviroc, or fostemsavir. Note that a change in treatment regimen for intolerance does not meet criteria for treatment failure.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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TaiMed Biologics Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Long Beach Education and Research Consultants

Long Beach, California, United States

Site Status NOT_YET_RECRUITING

Quest Clinical Research

San Francisco, California, United States

Site Status RECRUITING

CAN Community Health Fort Lauderdale

Fort Lauderdale, Florida, United States

Site Status RECRUITING

Midway Immunology and Research Center (MIRC)

Ft. Pierce, Florida, United States

Site Status RECRUITING

CAN Community Health Miami Gardens

Miami Gardens, Florida, United States

Site Status RECRUITING

Midland Medical

Oakland Park, Florida, United States

Site Status RECRUITING

Orlando Immunology Center

Orlando, Florida, United States

Site Status RECRUITING

CAN Community Health Sarasota

Sarasota, Florida, United States

Site Status RECRUITING

Mercer University, Department of Internal Medicine, Clinical Research

Macon, Georgia, United States

Site Status NOT_YET_RECRUITING

CAN Community Health Las Vegas

Las Vegas, Nevada, United States

Site Status RECRUITING

The Crofoot Research Center, Inc.

Houston, Texas, United States

Site Status RECRUITING

Countries

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United States

Facility Contacts

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Study Coordinator

Role: primary

562-684-2560

Study Coordinator

Role: primary

415-353-0800

Study Coordinator

Role: primary

786-724-1446 ext. 42301

Study Coordinator

Role: primary

772-595-9830

Study Coordinator

Role: primary

786-724-1446 ext. 42301

Study Coordinator

Role: primary

786-724-1446 ext. 42301

Study Coordinator

Role: primary

407-374-0220 ext. 2133

Study Coordinator

Role: primary

941-366-0134

Study Coordinator

Role: primary

478-301-5846

Study Coordinator

Role: primary

786-724-1446 ext. 42301

Study Coordinator

Role: primary

713-526-0005

Other Identifiers

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TMB-b21

Identifier Type: -

Identifier Source: org_study_id

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